// <editor-fold defaultstate="collapsed" desc="GNU GPLv3 Header">
/*
 * File:   ChunkHeader.java
 *
 * Copyright (C) 2013 Robert Antoni Buj Gelonch <rbuj@uoc.edu>
 * Copyright (C) 2013 David Megias Jimenez <dmegias@uoc.edu>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
// </editor-fold>
package uoc.libwave;

// <editor-fold defaultstate="collapsed" desc="imports">
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
// </editor-fold>

/**
 * Class for storing the header chunk of WAVE audio files and, for reading and
 * writing its content in Data I/O Streams.
 *
 * @author Robert Antoni Buj Gelonch <rbuj@uoc.edu>
 * @version 1.0
 * @since 2013-08-04
 */
final class ChunkHeader extends Chunk {

    static String CHUNK_HEADER_ID = "RIFF";
    static String CHUNK_HEADER_WAVEID = "WAVE";
    String strRiffType;

    /**
     *
     * @param HeaderChunkID
     * @param HeaderChunkSize
     * @param HeaderRiffType
     *
     * @since 2013-08-27
     */
    ChunkHeader(String HeaderChunkID, int HeaderChunkSize, String HeaderRiffType) {
        super(HeaderChunkID, HeaderChunkSize);
        strRiffType = HeaderRiffType;
    }

    /**
     *
     * @param _ckSize
     *
     * @since 2013-08-30
     */
    ChunkHeader(int _ckSize) {
        super(CHUNK_HEADER_ID, _ckSize);
        strRiffType = CHUNK_HEADER_WAVEID;
    }

    /**
     *
     * @param dos DataOutputStream that points correctly to the underlying output
     * stream for writing data.
     *
     * @since 2013-08-04
     */
    protected void save(DataOutputStream dos) throws IOException {
        writeCkID(dos);
        writeCkSize(dos);
        writeRiffType(dos);
    }

    /**
     *
     * @param dos DataOutputStream that points correctly to the underlying output
     * stream for writing data.
     *
     * @since 2013-08-04
     */
    private void writeRiffType(DataOutputStream dos) throws IOException {
        char[] ID = strRiffType.toCharArray();
        for (int i = 0; i < 4; i++) {
            writeAsciiCharLE(ID[i], dos);
        }
    }

}
